Abstract: | The synthesis of phosphono- and phosphonylmethyl-triorganostannanes R3SnCH2P(O)(OR′)R′′ (R′′ OR′, C6H5) via an Arbuzov reaction of R3SnCH2I with P(OR′)3 or C6H5P(OR′)2 (R′′ CH3, C2H5) is described. The new compounds have been studied with regard to their behaviour towards electrophilic (Br2, HCl, HgBr2) and nucleophilic (NaOH, LiAlH4, LiR) agents. Their reaction with chlorophenylphosphines followed by reduction with LiAlH4 yields the unsymmetrical methylenebis(phosphines) C6H5P(R)CH2PH2 (R H, C6H5). The title compounds add to the carbonyl group of aldehydes and the CN bond of phenylisocyanate. |